Verbseoul.
하다 verb (adj)

강력하다 conjugation (gangryeokhada, to be strong or powerful)

To say to be strong or powerful politely in the present tense, use 강력해요 (gahng-nyuh-kae-yoh) · gangnyeokaeyo. Below is the full conjugation of 강력하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
강력해
gahng-nyuh-kae
gangnyeokae
강력해요
gahng-nyuh-kae-yoh
gangnyeokaeyo
강력합니다
gahng-nyuh-kahm-nee-dah
gangnyeokamnida
Past
강력했어
gahng-nyuh-kae-ssuh
gangnyeokaesseo
강력했어요
gahng-nyuh-kae-ssuh-yoh
gangnyeokaesseoyo
강력했습니다
gahng-nyuh-kae-sseum-nee-dah
gangnyeokaesseumnida
Future
강력할 거야
gahng-nyuh-kahl guh-yah
gangnyeokal geoya
강력할 거예요
gahng-nyuh-kahl guh-yae-yoh
gangnyeokal geoyeyo
강력할 겁니다
gahng-nyuh-kahl guhm-nee-dah
gangnyeokal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
강력하세요
gahng-nyuh-kah-sae-yoh
gangnyeokaseyo
Suggestion / Let's Polite (요)
강력해요
gahng-nyuh-kae-yoh
gangnyeokaeyo
Question Polite (요)
강력해요?
gahng-nyuh-kae-yoh-?
gangnyeokaeyo?
Connective "and" — (고)
강력하고
gahng-nyuh-kah-goh
gangnyeokago
Conditional "if" — (면)
강력하면
gahng-nyuh-kah-myuhn
gangnyeokamyeon
Progressive (고 있어요)
강력하고 있어요
gahng-nyuh-kah-goh ee-ssuh-yoh
gangnyeokago isseoyo
Want to (고 싶어요)
강력하고 싶어요
gahng-nyuh-kah-goh shee-puh-yoh
gangnyeokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
강력할 수 있어요
gahng-nyuh-kahl soo ee-ssuh-yoh
gangnyeokal su isseoyo
Because / So (아/어서)
강력해서
gahng-nyuh-kae-suh
gangnyeokaeseo
Noun form — (기)
강력하기
gahng-nyuh-kah-gee
gangnyeokagi
Noun form — (음)
강력함
gahng-nyuh-kahm
gangnyeokam